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leva [86]
3 years ago
10

You perform a Kirby-Bauer assay with two antibiotics. Antibiotic X has a zone of inhibition of 3 mm. Antibiotic Y has a zone of

inhibition of 5 mm. Which antibiotic is better at killing this particular microorganism?
A. Antibiotic Y
B. It is impossible to tell from the information given.
C. Antibiotic X and Y, which have identical antimicrobial activities
D. Antibiotic X
Biology
1 answer:
Daniel [21]3 years ago
8 0

Answer:

<u>A. Antibiotic Y</u>

Explanation:

Kirby-Bauer assay is used to determine the susceptibility of an organism to the given antibiotics. It determines susceptibility by the diameter of zone of inhibition around antibiotic disks. Since the zone of inhibition of Antibiotic Y is greater than the Antibiotic X so Antibiotic is better or more powerful in killing this particular microorganism.

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Identify the parts of the female and male reproductive system and their functions. ​
Lena [83]

<u><em>Female:</em></u>

*Ovaries - release of oocytes (eggs), estrogen and progesterone.

*Oviducts (fallopian tubes) - where fertilization of the oocyte occurs to form a zygote.

*Uterus - where the zygote develops

*Cervix and vagina - allow for the entry of sperm for fertilization

<u><em>Male:</em></u>

*Testes - Releases testosterone and sperm

*Vas deferens - Passageway for sperm

*Epididymis - allows the sperm to pass from the testes and vas deferens and equips them with semen so they can survive internal fertilization

*Penis - releases sperm into the external environment for fertilization to occur

I hope I helped!

6 0
3 years ago
Read 2 more answers
How are solids, liquids, and gases different?
Shtirlitz [24]

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases.

Explanation:

gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

4 0
3 years ago
Check all that are characteristics of the esophagus. Check All That Apply
kvv77 [185]

Answer:

Option (A) and (D).

Explanation:

Esophagus may be defined the long tube like structure that connect the throat with the stomach. The partially digested food from the buccal cavity to the stomach is pass down through the esophagus.

The mucosa of the esophagus contains the thick layer of the nonkeratinized squamnous epithelium. The smooth muscles are present in some layers only. The two layer of the muscle that are superior to the one third of the muscularis are the skeletal muscle.

Thus, the correct answer is option (A) and (D).

6 0
3 years ago
which of the following statements about of matter is true? a. a gas has a definite volume but not a definite shape. b. a liquid
Sever21 [200]

I believe the answer is B.

6 0
3 years ago
How are organisms in the domain eukarya different from those in the domain archaea
g100num [7]

Answer:

Where they can survive

Explanation:

Organisms in the domain archaea can survive in extreme environments, such as in hydrothermal vents. Organisms in the domain eukarya, however, cannot. hope this helps!

3 0
3 years ago
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